It looks really great!
I noticed that you extended the upper #1 tubes and turned them into a functional slide. That's a great idea.
Since the 20K valve set has a smaller bore, does it play noticeably different than the 2XJ's?
A re-born beast, 21j convert
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SousaSaver
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- tubatom91
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Re: A re-born beast, 21j convert
Well, I will try to post a picture tomorrow, you're lucky and caught while I have both horns in the same city
. The Conn is slightly smaller than the Holton overall, although the bell size is larger. The bore size difference is less noticeable than one might think. The tone of both the Conn and the Holton is pretty similar and would easily blend played next to one another. I know if I had an upright bell for my Conn I would enjoy playing it a hell of a lot more than I do now. pics to come tomorrow.
Phi Mu Alpha Sinfonia-Nu Omicron Chapter
Holton 345 BBb 4V
Miraphone 188-5U CC
Meinl-Weston 45S F
Holton 345 BBb 4V
Miraphone 188-5U CC
Meinl-Weston 45S F
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Bob Kolada
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Re: A re-born beast, 21j convert
Make a youtube comparison! 
How's the intonation?
How's the intonation?
- Mtrhed
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Re: A re-born beast, 21j convert
Thanks for the update!
Have you noticed any diffrence in how nimble the horn plays after the conversion? Did the slides require much tweaking durring the conversion to play in tune? Doing up a horn like this is tempting......
Have you noticed any diffrence in how nimble the horn plays after the conversion? Did the slides require much tweaking durring the conversion to play in tune? Doing up a horn like this is tempting......
Mtrhed
Keizer,OR
1912-14 Martin BB 6/4 rotary valve top-action
Conn BB 21J -F/A 4+1 conversion "Conn-Zilla"
2014 Wessex "Mighty Midget"
1918 York BB Model #33
King BB 1241 w/both bells
Caravelle B Commuter
Bruscher B Helicon
Keizer,OR
1912-14 Martin BB 6/4 rotary valve top-action
Conn BB 21J -F/A 4+1 conversion "Conn-Zilla"
2014 Wessex "Mighty Midget"
1918 York BB Model #33
King BB 1241 w/both bells
Caravelle B Commuter
Bruscher B Helicon
- J.c. Sherman
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Re: A re-born beast, 21j convert
Damn - stole my idea!
I would guess the slightly smaller valveset would be an asset with a slightly shorter leadpipe (i.e. sans tuning bits (which people forget are supposed to be on the 2X Js)).
Nice job : )
J.c.S.
I would guess the slightly smaller valveset would be an asset with a slightly shorter leadpipe (i.e. sans tuning bits (which people forget are supposed to be on the 2X Js)).
Nice job : )
J.c.S.
Instructor of Tuba & Euphonium, Cleveland State University
Principal Tuba, Firelands Symphony Orchestra
President, Variations in Brass
http://www.jcsherman.net
Principal Tuba, Firelands Symphony Orchestra
President, Variations in Brass
http://www.jcsherman.net
- tubatom91
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Re: A re-born beast, 21j convert
Here are the two BAT's next to each other.








Phi Mu Alpha Sinfonia-Nu Omicron Chapter
Holton 345 BBb 4V
Miraphone 188-5U CC
Meinl-Weston 45S F
Holton 345 BBb 4V
Miraphone 188-5U CC
Meinl-Weston 45S F
- Tubajug
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Re: A re-born beast, 21j convert
Any particular reason you switched it to a recording bell? Or do you use them interchangably?
Jordan
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
- tubatom91
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Re: A re-born beast, 21j convert
I own the recording bell which is original to the horn, the upright bell is Illinois State University's for their 24J. I borrowed it for a summer.
Phi Mu Alpha Sinfonia-Nu Omicron Chapter
Holton 345 BBb 4V
Miraphone 188-5U CC
Meinl-Weston 45S F
Holton 345 BBb 4V
Miraphone 188-5U CC
Meinl-Weston 45S F
- Tubajug
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Re: A re-born beast, 21j convert
Good deal. Thanks for replying! That sure is a beastly looking horn!tubatom91 wrote:I own the recording bell which is original to the horn, the upright bell is Illinois State University's for their 24J. I borrowed it for a summer.
Jordan
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.